Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy

ABSTRACT

The subject of the invention is a method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy. It makes possible conversion of variable stream of renewable energy, especially of wind, tide and the sun, to constant stream of electrical energy. Considerable part of renewable energy stream is accumulated in substance in artificial or natural tank ( 6 ). The heat collected in tank ( 6 ) is transferred to transmission agent, which as the gas with pressure drives turbine ( 11 ) and electrical generator ( 12 ). Renewable energy stream sensor ( 15 ) gives the information about actual renewable energy stream power to control system ( 3 ). Proper steering of: converter ( 4 )/or mirror and heater in the sun energy system version/and control modules ( 8, 10, 14, 13 ), additionally using of energy accumulated in rotating mass of turbine rotor ( 1 )/in wind and tides energy system version/gives possibility of receiving constant stream of electrical energy. While renewable energy stream is present, it is possible the simultaneous work of generator ( 2 ) with converter ( 4 )/or mirror and heater in the sun energy system version/and generator ( 12 ) what gives even two times bigger output power of the system. If conversion of voltage produced by converter ( 4 ) and/or generator ( 12 ) to voltage of electrical grid is needed transformer ( 16 ) can be used. Moreover transformer ( 16 ) power is lower than power of generator ( 2 )/or mirror and heater in the sun energy system version/. It is worth of mentioning that in heat exchanger ( 14 ) additional stream of heat is received, which can be used for other purposes.

Subject of the invention is a method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy making possible conversion of renewable energy variable stream, especially of wind, tide and the sun, to constant stream of electrical energy.

Description of patent no JP2240401 (A) shows method of energy store in pressured substance in pressure accumulator.

Description of patent no FR2891095 (A1) shows method of energy store in heated substance in tank with water heated in the sun panels.

Description of patent no JP57146004 (A) shows method of energy store in heated substance in heat accumulator.

Method of renewable energy store in temperature-pressure tank of energy and conversion to electrical energy consists of accumulation of energy in substance in tank and receiving high pressure and temperature.

System for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy is characterized by storing electrical energy produced from renewable energy by main generator (generators). This energy is stored in temperature-pressure tank without conversion to the parameters proper for the electrical grid. Only part of electrical energy is converted by converter to the parameters proper for the electrical grid. Heat accumulated in the tank is transferred to transmission agent, which as the gas with pressure is given to the turbine, which drives additional electrical generator. While renewable energy stream is present the simultaneous using of converter and additional generator gives possibility of receiving higher output power of the system. In the case when the system must be connected to the electrical grid through transformer it is possible to use transformer with lower power than power of main generator. Moreover this transformer is much better, more continuously used during operation. Use of renewable energy stream sensor gives the information to the control system about actual stream. Based on this information, the control system steers: converter, modules in transmission agent circuit and control module of additional generator. Additionally the control system can use energy accumulated in rotating mass of turbine rotor. It gives possibility of receiving constant stream of electrical energy transferred to the grid. The system produces additional stream of heat, which can be used for other purposes. The system can work as the stable electrical energy source without connection to the grid.

In the case when the system uses energy of the sun, this energy can be used directly for heating substance in temperature-pressure tank, without any additional conversion to electrical energy. Part of the sun energy is used for direct heating of transmission agent which as the gas with pressure is given to the turbine, which drives electrical generator. Generator fed by energy from tank or part of the sun energy has lower power than power of the sun energy stream. Moreover generator is better, more continuously used during operation. While the sun energy stream is present the simultaneous using of the sun energy and energy stored in tank gives possibility of receiving higher output power of the system.

Solution according to invention gives possibility of elimination negative influence of changes of renewable energy stream on electrical energy stream, which is fed to the electrical grid. Thanks to this solution we can obtain ecological, clear, reliable and stable electrical energy source which fully enables to replace conventional sources.

The temperature-pressure tanks for energy store can be made as an artificial or natural tank with lower influence on landscape.

Electrical energy produced by generator (generators) driven by renewable energy of wind or tide can be converted in majority into heat accumulated in temperature-pressure tank without additional conversion what reducing loses. Only part of electrical energy is converted by converter to the parameters proper for the electrical grid what gives the savings because lower power converter is needed. Generator driven by energy accumulated in tank has power which is only part of power of generator (generators) driven by energy of wind or tide. Moreover this generator is better, more continuously used during operation. The simultaneous using of converter and generator driven by tank energy gives possibility of receiving higher output power of the system what increases energetic safety of the electrical grid. In the case when the system must be connected to the electrical grid through transformer it is possible to save money because of the use transformer with lower power than power of main generator (generators). Moreover transformer is much better, more continuously used during operation.

Energy of the sun can be used directly for heating substance in temperature-pressure tank, without any additional conversion to electrical energy what reducing energy loses. Only part of the sun energy is used for direct heating of transmission agent and smaller and cheaper heater is needed. Generator fed by energy from tank and/or part of the sun energy has lower power than power of the sun energy stream and because of that it is cheaper. Moreover this generator is better, more continuously used during operation. While the sun energy stream is present the simultaneous using of the sun energy and energy stored in tank gives possibility of receiving higher output power of the system what increasing energetic safety of the electrical grid. In the case when the system must be connected to the electrical grid through transformer it is possible to save money because of the use transformer with lower power than power of collected the sun energy stream. Moreover transformer is much better, more continuously used during operation.

The subject of invention in examples of realization is shown on drawing, where FIG. 1 is showing system for storing renewable energy especially of wind and tides, FIG. 2 is showing system for storing renewable energy especially of the sun.

Wind or tides turbine rotor 1, in example of realization according to FIG. 1, is driven by variable energy stream of wind or water. Rotor 1 is converting this energy to mechanical energy driving generator 2, which converts it to electrical energy. Part of electrical energy steered by control system 3 is converted by converter 4 to electrical energy with parameters proper to the electrical grid. The rest part of electrical energy, steered by control system 3 is transferred through regulation-switching module 5 to temperature-pressure tank 6, where heating module 7 is converting this energy to heat of substance in tank. During the accumulation of energy in tank temperature and pressure are increasing. Steered by control system 3 pressing-valve module 8 is introducing transmission agent to located in temperature-pressure tank 6 heat exchanger 9. Agent, after being heated in heat exchanger 9, as the gas with pressure by valve 10 steered by control system 3 is given to turbine 11, which drives electrical generator 12. Parameters of produced energy are steered by control system 3 with control module 13. Transmission agent after passage through turbine 11 and the pressure decreasing is cooled in heat exchanger 14, where additional stream of heat is received. Renewable energy stream sensor 15 gives the information to control system 3 about actual power of wind or tides stream. It gives possibility of fast reaction of the system to a change of renewable energy stream and energy produced by generator 2. Proper steering of: converter 4, pressing-valve module 8, valve 10 and heat exchanger 14 in transmission agent circuit, control module 13 of generator 12, and the using of energy accumulated in rotating mass of turbine rotor 1 gives possibility of receiving constant stream of electrical energy introduced to the grid. If it is needed, while energy stream of wind or tides is present, it is possible the simultaneous work of generator 2 with converter 4 and generator 12 what gives even two times bigger electrical energy stream than in normal situation. If conversion of voltage produced by converter 4 and/or generator 12 to voltage of electrical grid is needed transformer 16 can be used. Moreover transformer 16 power can be lower than power of generator 2. The system steered by control system 3 can work as the stable electrical energy source without connection to the grid. Temperature-pressure tank 6 can be artificial or natural.

Stream of the sun energy, in example of realization according to FIG. 2, is conducted on mirror 1 and heater 2. Mirror 1 steered by control system 3 is reflecting part of the sun energy in direction of heating module 5 located in temperature-pressure tank 4, which module 5 is converting energy to heat of substance in tank. During accumulation energy in tank temperature and pressure is increasing. Pressing-valve module 6 steered by control system 3 introduces transmission agent to heater 2. Agent, after being heated in heater 2, as the gas with pressure through valve 7 steered by control system 3 is given to turbine 11 supply circuit. Pressing-valve module 8 steered by control system 3 introduces transmission agent to heat exchanger 9 located in temperature-pressure tank 6. Agent, after being heated in heat exchanger 9, as the gas with pressure through valve 10 steered by control system 3 is given to turbine 11, which drives electrical generator 12. Parameters of produced energy are steered by control system 3 with control module 13. Transmission agent after passage through turbine 11 and the pressure decreasing is cooled in heat exchanger 14, where additional stream of heat is received. Renewable energy stream sensor 15 gives the information about actual power the sun energy stream for control system 3. It gives possibility of fast reaction of the system to a change of the sun energy stream and in result to change of energy steered by mirror 1 on heating module 5 and heater 2. Proper steering of: pressing-valve modules 6 and 8, valves 7 and 10 and heat exchanger 14 in transmission agent circuit, control module 13 of generator 12 gives possibility of receive constant stream of electrical energy introduced to the grid. If it is needed, while energy stream of the sun is present, it is possible the simultaneous work of heater 2 and heat exchanger 9 what gives even two times bigger stream of transmission agent which drives turbine 11 and generator 12 and in result two times bigger electrical energy stream than normal situation. If conversion of voltage produced by generator 12 to voltage of electrical grid is needed transformer 16 can be used. Moreover transformer 16 power can be lower than power collected and transmitted by mirror 1 and heater 2. The system steered by control system 3 can work as the stable electrical energy source without connection to the grid. Temperature-pressure tank 6 can be artificial or natural. 

1. Method of renewable energy store in temperature-pressure tank of energy and conversion to electrical energy is characterized by the accumulation of energy by heating substance in tank with high pressure and temperature.
 2. System for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy is characterized by the fact that electrical energy produced by turbine rotor in generator in considerable part with usage of regulation-switching module and heating module is converted to heat of substance in temperature-pressure tank without need of conversion in converter to parameters proper to the electrical grid.
 3. System according to claim 2, is characterized by the fact that heat accumulated in temperature-pressure tank by heat exchanger is transferred to transmission agent, which as the gas with pressure through valve is given to turbine, which drives electrical generator.
 4. System according to claim 2, is characterized by the fact that while renewable energy stream is present the simultaneous using of converter and generator gives possibility of receiving higher output power of the system.
 5. System according to claim 2, is characterized by the fact that in the case when the system must be connected to the electrical grid through transformer it is possible to use transformer with lower power than power of generator. Moreover transformer is much better and more continuously used during operation.
 6. System according to claim 2, is characterized by the fact that renewable energy stream sensor gives the information about actual renewable energy stream to the control system. Based on this information control system can use energy accumulated in rotating mass of turbine rotor. It can also steer: converter, pressing-valve module, valve and heat exchanger in transmission agent circuit and control module of generator. It gives possibility of receiving constant stream of electrical energy transferred to the grid.
 7. System according to claim 2, is characterized by the fact that the system steered by control system can work as the stable electrical energy source without connection to the grid.
 8. System according to claim 2, is characterized by the fact that it is producing in heat exchanger additional stream of heat, which can be used for other purposes.
 9. System according to claim 2, is characterized by the fact that temperature-pressure tank can be artificial or natural.
 10. System according to claim 2, is characterized by the fact that renewable energy of the sun can be used directly for heating substance in temperature-pressure tank, without any additional conversion.
 11. System according to claim 10, is characterized by the fact that part of the sun energy is used for direct heating of transmission agent, which as the gas with pressure is given to turbine, which drives electrical generator.
 12. System according to claim 10, is characterized by the fact that generator fed by energy from tank and/or part of the sun energy has lower power than power of the sun energy stream. Moreover generator is better, more continuously used during operation.
 13. System according to claim 10, is characterized by the fact that while the sun energy stream is present the simultaneous using of the sun energy and energy stored in tank give possibility of receiving higher output power of the system.
 14. System according to claim 10, is characterized by the fact that the system steered by control system can work as the stable electrical energy source without connection to the grid. 